KR950013982B1 - Anti-loosening snap-fit cap for dispenser - Google Patents

Abstract

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Description

Impact-proof cap for sprayer

1 is a partial cross-sectional side view of a nebulizer body having an impact-tight cap for coupling the nebulizer body to the container neck and including the anti-rotation features of the present invention.

2 is an exploded cross-sectional view similar to the first diagram showing details of one feature of the present invention;

3 is a plan view taken along line 3-3 of FIG.

4 is a bottom view of the 4-4 line in FIG.

5 is a side view similar to the first diagram incorporating another embodiment of the present invention.

6 is an enlarged excerpt of an excerpt shown in FIG.

Figure 7 is an excerpt from line 7-7 of Figure 5;

8 and 5 are line 8-8 excerpts.

* Explanation of symbols for main parts of the drawings

10: dispenser 11: spray bottle

12: Attachment 13: outward annular flange

14: lower wall portion of the attachment portion 12 15: upper wall portion of the flange 13

16: container neck 17: wheat cap

18: skirt portion 19: the edge of the skirt portion 18

21: gasket seal 22: upper wall of the container neck 16

The present invention relates generally to a hand-operated sprayer having a snap-fitted hermetic cap with a screw thread inside to couple the sprayer to the neck of the spray solution. More particularly, loosening is prevented after the threaded closure cap is fully coupled to the container.

The present invention discloses a U.S. threaded closure cap which is detachable to a nebulizer body to couple the nebulizer body to a threaded vessel neck. Improvements in patents 4, 361, 256. An annular flange of five directions is formed at the lower end of the nebulizer body, and the closed cap is formed with an elastic skirt that is rigidly coupled to the flange to securely hold the nebulizer body and the cap together. The conical elastic skirt formed on the cap when the cap is coupled to the neck of the container, ie screwed, is to some extent for tight sealing between the sprayer body and the neck of the container, and for tight coupling between the cap and the lower part of the pump body. Is deformed. A gasket seal may be interposed between the lower end of the pump body and the upper end of the container neck, which may be slightly compressed when tightening the closed cap.

In the meantime, in the use of such an impact closure cap, there has been a problem that after the atomizer body is assembled into the container, the clamped closure cap is loosened or loosened, especially during loading and storage, to cause leakage of contents from the container. For example, vibrations during loading can lead to loosening of the closure cap and deterioration and relaxation of the compressed gasket seal. Similarly, when the pump body must be directed in a new direction on the container during loading or prior to loading, the sprayer body is often rotated in the unwinding direction around the center axis of the container to relax. In addition, during use of the nebulizer, it may be necessary to calibrate the nebulizer body relative to the container, since the closing cap tends to loosen if it is rotated in the disengaging direction.

Accordingly, it is an object of the present invention to prevent the rotation of the sprayer body around the center axis of the vessel and / or deterioration of the gasket seal, while having an impact closure cap of the type described above, resulting in a leak-tight coupling from the neck of the vessel which may cause leakage. It is to provide a nebulizer that can completely prevent loosening of the cap.

According to one feature of the invention, the edge of the deformable skirt of the cap that constrains the flange of the sprayer body is uneven, and the surface of the flange bound to the edge is likewise uneven so that the relative of the sprayer body to the cap. Prevent rotation.

Another feature is to provide a ratchet tooth or other anti-slip means at the bottom of the sprayer body that overlaps the upper end of the container neck and the container neck, while interposing a gasket coupled with the non-slip means between the container body and the neck of the sprayer body. Provide relative rotation prevention. The gasket seal itself has a ratchet tooth or other non-slip means in the width of the sprayer body and the container neck and restraints, or when the gasket seal is made of deformable material to clamp the sealing cap It can be modified by the combination of. Thus, the deterioration of the gasket seal is completely prevented.

Other objects, advantages and novel features of the invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

Like reference numerals in the drawings support like corresponding parts.

Reference numeral 10 in FIG. 1 denotes an entire sprayer, which is a triggered sprayer that sprays a liquid by pumping operation. The nebulizer is installed on the container 11 containing the liquid to be atomized by the operation of this nebulizer. In the example shown, one triggered sprayer is shown, but the present invention can also be applied to other types of sprayers, such as, for example, pusher and press sprayers, without departing from the invention.

The nebulizer has a cylindrical attachment 12 having an outward annular flange 13 adjacent its bottom wall 14.

The nebulizer body is installed on the vessel neck 16, which is threaded on the outside, through the provision of a closure cap 17 having a screw thread on the inside that is engaged with the thread of the neck. The closure cap has a central opening bounded by an annular skirt or lip 18 for tight coupling of the cap to the attachment 12 of the sprayer body. The skirt is in the form of a cone with an edge wall 19. The skirt portion also has sufficient elasticity to elastically deform during the insertion process so that the cap can be inserted onto the attachment portion 12 of the sprayer body. Thus, the nebulizer body and the sealing cap are tightly coupled with the upper wall 15 of the flange 13 supported by the edge wall 19 of the skirt 18.

A gasket seal 21 is located between the bottom wall 14 of the attachment and the top wall 22 of the container neck 16. The gasket has a central opening 23 (see FIG. 3) and is installed on the sprayer body via a retainer tube 24 inserted into the inner sleeve 25 of the sprayer body, which retains liquid during pumping by actuation of trigger 27. A suction pipe 26 extending inside the container is being installed.

As clearly shown in FIG. 8, the surface of the conical top wall 15 of the flange 13 is concave and convex, for example, by the provision of radially extending fine protrusions 28 or other non-slip means. In addition, as shown in FIG. 7, the edge wall portion 19 of the elastic skirt portion 18 of the closure cap is concave and convex with provision of radially extending fine protrusions 29 or other sliding means. Thus, when the closing cap is tightened on the neck of the container, the three protrusions 28 and 29 prevent the atomizer body from rotating around the center axis of the attachment part 12 (ie, the center axis of the container) in a cooperative operation by mutual engagement. . In this way the loosening of the combined closure cap and the resulting tendency to leak contents from the container are reduced.

According to another feature of the invention, the ratchet teeth 31 are provided on the bottom wall 14 surface of the attachment portion 12, and the ratchet teeth 32 are likewise provided on the top wall 22 surface of the container neck 16. In addition, ratchet teeth 33, 34 are provided on opposing surfaces of the gasket seal as shown in detail in FIGS. 2, 3 and 4. Therefore, the ratchet teeth 31 and 33 and the ratchet teeth 32 and 32 are replaced with each other when the sealing cap is coupled to the container neck in the assembled state as shown in FIG. This engagement acts to support the rotation of the gasket seal and the relative rotation between the sprayer body and the vessel around the attachment 12 central axis, thereby completely preventing the combined sealing cap from loosening from the neck of the vessel.

Another alternative embodiment is shown in FIGS. 5 and 6, wherein the gasket seal 21A has an enlarged outer edge 35 defining trumpets 36 and 37 and forms radial longitudinal grooves along the outer edge. In addition, the gasket seal 21A is made of a relatively soft material such as foamed polyethylene, and when assembled as shown in FIG. 5, the ratchet teeth 31 and 32 bite while deforming the trumpets 36 and 37, thereby rotating the gasket seal. And the attachment of the atomizer body to the vessel 12 will impede rotation around the central axis.

By fixing the gasket seals and stopping the rotation of the sprayer body the relaxation tendency of the closure cap from the container neck is reduced. This minimizes the leakage of content from the container.

From the foregoing, it can be seen that a simple, economical and very effective approach is obtained to avoid loosening or loosening of the combined closure cap after assembly. Therefore, according to the present invention, even if the assembled atomizer / vessel is subjected to vibration or shock during storage and loading, there is no tendency to loosen the cap. Further, the sprayer body is completely prevented from rotating relative to both the sealed cap and the container around the center axis of the attachment portion. Therefore, the loosening of the combined sealing cap after assembly and the leakage of contents from the container are thereby completely prevented.

It is evident that many other modifications and variations can be made from the suggestions introduced above. For example, the ratchet teeth 31 to 34 can be replaced with an uneven surface, a protrusion or another non-slip surface without departing from the present invention. Accordingly, it is to be understood that the invention may be practiced otherwise within the scope of the appended claims rather than the foregoing.

Claims (8)

A body having a cylindrical attachment portion and an outward flange having an annular upper wall portion on the attachment portion, and a conical elastic skirt tightly coupled to the flange at one end to securely hold the attachment portion and the cap between each other; And a spraying liquid container having a neck and a spray cap freely rotatable with a thread formed inside, and a neck portion formed with a thread formed on the outside and screwed to the cap, wherein the skirt unit couples the cap to the container neck. An edge wall portion for tightly constraining the annular top wall portion, and on the edge wall portion and the annular top wall portion, the body is prevented from being relatively rotated about a central axis of the attachment portion with respect to the cap. A nebulizer configured to provide a cooperative means for preventing loosening from the neck. The atomizer of claim 1, wherein the edge wall portion and the annular top wall portion have concave and convex surfaces including the cooperating means. A body having an outward flange having a cylindrical attachment portion and an annular top wall portion on the attachment portion, and a conical elastic skirt rigidly coupled to the flange to securely hold the attachment portion and the cap between each other at one end thereof; And a spraying container having a neck and a freely rotatable cap having a thread formed therein, and a neck portion formed with a thread formed on the outside thereof and screwed to the cap, wherein the attachment portion overlaps the upper wall of the neck of the container. The bottom wall portion, the skirt portion has an edge wall portion that tightly constrains the annular top wall portion when the skirt portion is coupled to the container neck, and the body prevents the body from being rotated relative to the center axis of the attachment portion with respect to the container. The attachment portion and the container to prevent loosening from the neck of the combined cap The sprayer hayeoseo having coupling portions with the restraining means. 4. The gasket and non-slip surfaces of claim 3, wherein the lower and upper wall portions have an anti-slip surface, and a gasket coupled to the non-slip surfaces is interposed between the attachment portion and the container neck portion. Sprayer to make up. 5. The nebulizer of claim 4 wherein the non-slip surfaces comprise ratchet teeth and the gasket includes ratchet teeth engaged with the ratchet teeth of these surfaces. 5. The sprayer of claim 4 wherein said non-slip surfaces comprise ratchet teeth and said gasket is of deformable material deformed to these teeth. 2. The cooperating means of claim 1, wherein the body prevents the body from being rotated about the central axis relative to the cap on the edge wall portion and the annular upper wall portion to prevent loosening from the neck of the joined cap. Also provided by the atomizer. 8. The nebulizer of claim 7, wherein the edge portion and the annular upper wall portion have an uneven surface comprising the cooperative means.

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